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2996 matches found for "biological system"

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The Protein Srebp2 Drives Cholesterol Formation in Prion-Infected Neuronal Cells Which May Promote Prion-Dependent Diseases

Prions are causing fatal and infectious diseases of the nervous system, such as the mad cow disease (BSE), scrapie in sheep or Creutzfeldt-Jakob disease in humans. Scientists of Helmholtz Zentrum Münc...

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Scientists Unravel Evolution of Highly Toxic Box Jellyfish

With thousands of stinging cells that can emit deadly venom from tentacles that can reach ten feet in length, the 50 or so species of box jellyfish have long been of interest to scientists and to the ...

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Are Teenagers Wired Differently Than Adults?

With the advent of magnetic resonance imaging, or MRI, we have begun to appreciate how the brain continues to develop structurally through adolescence and on into adulthood. High emotionality is a cha...

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On your last nerve: NC State researchers advance understanding of stem cells

The research is a significant advance in understanding the development of the nervous system, which is essential to addressing conditions such as Parkinson's disease, Alzheimer's disease and...

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Petascale Tools Could Provide Deeper Insight into Genomic Evolution

Research recently funded by the American Recovery and Reinvestment Act of 2009 aims to develop computational tools that will utilize next-generation petascale computers to understand genomic evolution...

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Warmer Means Windier on World’s Biggest Lake

Since 1985, surface water temperatures measured by lake buoys have climbed 1.2 degrees per decade, about 15 percent faster than the air above the lake and twice as fast as warming over nearby land....

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Largest gene study of childhood IBD identifies 5 new genes

In the largest, most comprehensive genetic analysis of childhood-onset inflammatory bowel disease (IBD), an international research team has identified five new gene regions, including one involved in ...

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Sweet as can be: how E. coli gets ahead

Microbes are well-known for their ability to grow in demanding and nutritionally poor environments, which has allowed them to colonise some of the most remote places on the planet. Bacteria living in ...

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Hoping for a fluorescent basket case

Although recent advances have raised hopes that a protective vaccine can be developed, acquired immunodeficiency syndrome (AIDS) remains a major public health problem. Much has been learned about HIV-...

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New paper describes connections between Circadian and metabolic systems

The relationship between circadian and metabolic systems the researchers describe could have important implications for understanding the higher incidence of cardiovascular disease, obesity and diabet...

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Longevity tied to genes that preserve tips of chromosomes

Yousin Suh, Ph.D.Telomeres play crucial roles in aging, cancer and other biological processes. Their importance was recognized last month, when three scientists were awarded the 2009 Nobel Prize in Ph...

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People entering their 60s may have more disabilities today than in prior generations

In the study, which will be published in the January 2010 issue of the American Journal of Public Health, researchers from the division of geriatrics at the David Geffen School of Medicine at UCLA fou...

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Studies show marine reserves can be an effective tool for managing fisheries

A recent study in the Gulf of California, for example, confirmed the validity of a key concept behind marine reserves--the idea that offspring produced in a protected area can replenish the stocks of ...

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UCSD discovery allows scientists for the first time to experimentally annotate genomes

The information collected from genome sequencing will provide the raw data for the field of bioinformatics, where computer science and biology meet. Since the publication of the first full genome sequ...

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Nitrogen loss threatens desert plant life

"This is a way that nitrogen is lost from an ecosystem that people have never accounted for before," said Jed Sparks, associate professor of ecology and evolutionary biology and co-author of...

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